you really wont notice much of a hp gain with the higher comrpession. Maybe 2 or 3 hp with a 12a. We only shaved .1 second off a quarter mile running 8:1 with a 12a at 15lbs vs a 130k mile 7:1 12a running 15lbs. But you could easily shave maybe 20 though off the head and probably reach that compression. Or was it 10? I'm not sure. An adjustable timing gear would corret your cam timing. Frankly I wouldnt bother.You will be able to get away with a little more boost off the stock compresion which will greatly make up for the tiny increase in compression.

basically the gen 1 turbo mas will let you run up to around 27lbs or somewhere around there. If you plan on running more than 14 then go for it. I'd grab the plug with it though so you can splice it into the stock wiring. Should be a writeup on starquestclub under the faq on the wiring for the 7 pin 1g mas plug.

Make sure the mas you get off the eclipse isnt hacked. A lot of 1g guys hack the mas. Another plus side to the 1gmas is you can get a cone filter